| 混合多元醇对无溶剂聚氨酯覆膜胶性能的影响 |
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| 引用本文： | 陈双莲,陈广学,陈奇峰,贾春江,王 青.混合多元醇对无溶剂聚氨酯覆膜胶性能的影响[J].包装工程,2012,33(7):40-43,77. |
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| 作者姓名： | 陈双莲 陈广学 陈奇峰 贾春江 王 青 |
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| 作者单位： | 华南理工大学制浆造纸工程国家重点实验室 |
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| 摘 要： | 以聚己二酸-1,4-丁二醇酯(PBA)、植物油多元醇、异弗尔酮二异氰酸酯(IPDI)和小分子多元醇为主要原料,制备了一种双组分无溶剂型聚氨酯胶粘剂。研究了双组分的配比R′和混合多元醇组分对聚氨酯胶粘剂固化速率、固化后胶膜的热稳定性和吸水率的影响,并测试了覆膜样品的T剥离强度。结果表明:当双组分配比R′=1.3时,胶粘剂综合性能最佳;添加小分子多元醇并不能提高胶粘剂的固化速率和耐热性,但能显著改善胶粘剂的粘结性能,并且选择性添加适量的小分子二醇,还能增强其耐水性。
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| 关 键 词： | 无溶剂 聚氨酯 植物油多元醇 小分子多元醇 覆膜胶 |
| 收稿时间： | 2/3/2012 12:00:00 AM |
| 修稿时间： | 2012/4/10 0:00:00 |
Effects of Mixed-polyols on Properties of Solvent-free Polyurethane Laminating Adhesives |
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| CHEN Shuang-lian,CHEN Guang-xue,CHEN Qi-feng,JIA Chun-jiang and WANG Qing.Effects of Mixed-polyols on Properties of Solvent-free Polyurethane Laminating Adhesives[J].Packaging Engineering,2012,33(7):40-43,77. |
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| Authors: | CHEN Shuang-lian CHEN Guang-xue CHEN Qi-feng JIA Chun-jiang and WANG Qing |
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| Affiliation: | (State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Two-component solvent-free polyurethane adhesive was prepared with PBA,vegetable oil polyols,IPDI and several different small molecular alcohols as main raw materials.The influences of two-components ratio R′ and mixed polyols components on curing speed,heat resistance,water absorption,and T-peel strength were studied.The results showed that the adhesives showed the best comprehensive properties when the two-components ratio R′ is 1.3;addition of small molecular alcohols can not increase the curing speed and heat resistance,however,it can significantly improve the peel strength of the adhesive;adding appropriate amount of small molecules alcohols selectively can enhance its water resistance. |
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| Keywords: | solvent-free polyurethane vegetable oil polyols small molecular alcohols laminating adhesive |
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